Samuel Smith and David Jones have been friends and pen pals for 20 years, During the first 19 years of their friendship, they often exchanged letters. Their cordial relationship ended last year when they got into an argument, and David punched Samuel, breaking his nose. Samuel sues David for battery, seeking to recover damages for his medical expenses and lost wages for the time he had to take off work due to his injury. David claims that he punched Samuel in self-defense. At trial, Samuel would like to testify that a month prior to their fight, he received a letter from David in which David wrote, I really need to learn how to control my temper. I started a fight and punched a man for no reason at all. Seems like I just want to hit folks all the time. David did not sign the letter, but Samuel nevertheless claims he can recognize David's handwriting due to their 19 years of routinely exchanging letters. Would Samuel's testimony that he can recognize David's handwriting be enough to authenticate the letter? Why or why not?